anrygraf Posted August 27, 2015 Share Posted August 27, 2015 (edited) Hello everybody! I'm novice and bought on Ebay Atari 1040STF.Computer successfully earned, but after 2 hours of fun has stopped working.After power up I see the 'blue screen' (photo attached) and floppy drive is silent, keyboard does not react.I checked power supply, voltage +5 and +12 is ok.I'm shocked and don't know what the problem(((Please give me instructions for how to diagnose the problem.p.s. sorry for my english Edited August 27, 2015 by anrygraf Quote Link to comment Share on other sites More sharing options...
exxosuk Posted August 28, 2015 Share Posted August 28, 2015 There shouldn't be a blue screen, Atari screen in white on power up (at least it should be). What happens when you press the reset button on the back ? Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 There shouldn't be a blue screen, Atari screen in white on power up (at least it should be). What happens when you press the reset button on the back ? Nothing is happening, just a blue screen. Quote Link to comment Share on other sites More sharing options...
exxosuk Posted August 28, 2015 Share Posted August 28, 2015 Does your TV/Monitor go to a blue screen when there is no signal ? Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 Does your TV/Monitor go to a blue screen when there is no signal ? I use LCD TV, no, if no a signal (Atari is off) just is black screen. Quote Link to comment Share on other sites More sharing options...
exxosuk Posted August 28, 2015 Share Posted August 28, 2015 You might want to check my PSU pages as its possible your PSU has gone bad. Measuring 5V on a meter isn't reliable. http://www.exxoshost.co.uk/atari/last/psu/index.htm Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 You might want to check my PSU pages as its possible your PSU has gone bad. Measuring 5V on a meter isn't reliable. http://www.exxoshost.co.uk/atari/last/psu/index.htm Thanks Moonsweeper, good job! But blue screen can be if PSU is corrupted? Quote Link to comment Share on other sites More sharing options...
exxosuk Posted August 28, 2015 Share Posted August 28, 2015 I have never seen a blue screen on a atari, only white or black. PSU is best place to start. Also re-seat all socketed chips to be sure. Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 I have never seen a blue screen on a atari, only white or black. PSU is best place to start. Also re-seat all socketed chips to be sure. OK, I will check PSU For test I can use ATX PSU from PC? There is also + 5V & + 12V Quote Link to comment Share on other sites More sharing options...
exxosuk Posted August 28, 2015 Share Posted August 28, 2015 Yes you could try a PSU from PC. You only need 5V and 12V. Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 Thank, tonight will be what to do... Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 So, I found two problems.* Blue screen - broken SCART cable, no signal for red color** Atari still boot, if swing a video connector (up/down)ю Maybe micro crack on PCB (I do not know how to check it...) About capacitors on PSU, they need to be replaced Quote Link to comment Share on other sites More sharing options...
exxosuk Posted August 28, 2015 Share Posted August 28, 2015 Your original post said atari not booting, even if bad video cable you should arrive at desktop in around 45 seconds. Quote Link to comment Share on other sites More sharing options...
anrygraf Posted August 28, 2015 Author Share Posted August 28, 2015 Your original post said atari not booting, even if bad video cable you should arrive at desktop in around 45 seconds. Yes, if video connector don't swing, Atari never boot. I think about detection of this problem Quote Link to comment Share on other sites More sharing options...
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